It's not usually considered a good idea to have all the inductors orientated the same way, particularly ones that are close together. Are they like that for a particular reason?
Edit: Oh, I see Paul has already covered this. The interaction between coils is very well known and widely documented. In addition, as Paul says, it is very easy to measure. I have also tried measuring inductors in close proximity to metal sheets and, again, the effect is very easy to measure and quite significant.